Articleship tenure

supposing if a student passes Group 1of ipcc in may 2012 and thereafter he passes group 2 of ipcc in nov 2012. now when can he give his ca final exam?                    

What is time gap between ipcc and ca final?

i mean if a student completes group 1 on may 2012 and he joins articleship and then in nov 2012 he clears group 2.now when is he eligible to take ca final exam is it on may 2015 or nov 2015????????????????

can sumbody explain this??????????